Siemens SIMATIC ET 200M Operating Instructions Manual page 112

Maintenance and service
7.7 Replace modules with the function "Change During Operation"
4. Unlock the front connector and remove it.
– With 20-pin front connector: To do this, use one hand to press the unlocking button
– With 40-pin front connector: Release the fixing screw in the centre of the front
5. Pull the labeling strips out of the module.
Remove the front connector encoding device
Prior to installing the new module you must remove the top part of the front connector
encoding on the module. Reason: This part is already available in the wired front connector
(refer to the following figure).
Figure 7-2
112
down (4) and use your other hand to remove the front connector via the gripping
surface (4a).
connector. Use the gripping surface to pull out the front connector.
Remove the front connector encoding device
Operating Instructions, 04/2022, EWA-4NEB7806006-09
ET 200M